scholarly journals Preparation and Performance ofcis-Polybutadiene Rubber Composite Materials Reinforced by Organic Modified Palygorskite Nanomaterials

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Fei Wang ◽  
Lei Feng ◽  
Qingguo Tang ◽  
Haifeng Liu ◽  
Huimin Liu
Keyword(s):  
Composite Materials ◽  
Coupling Agent ◽  
Mechanical Performance ◽  
Rubber Matrix ◽  
Optimal Dosage ◽  
Polybutadiene Rubber ◽  
Rubber Composite ◽  
Hydrophilic Character ◽  
And Performance ◽  
Modified Palygorskite

The hydrophilic character of palygorskite has been modified by grafting organic group and controlling surface energy for improving compatibility of palygorskite in rubber matrix using palygorskite ascis-polybutadiene rubber fillers. The effects of coupling modification on the performance ofcis-polybutadiene rubber materials filled with palygorskite were investigated, and the influence of coupling agent dosage on their mechanical properties was also studied. The results indicated that the mechanical performance ofcis-polybutadiene rubber materials reinforced by modified palygorskite could be improved significantly, and the tensile strength and tearing strength increased by 122.5% and 107.6% at the optimal dosage (15%) of coupling agent 3-mercaptopropyl trimethoxysilane. Moreover, the reinforcement mechanism of rubber composite materials as prepared was also analyzed.

scholarly journals Effect of Modified Sepiolite Nanofibers on Properties ofcis-Polybutadiene Rubber Composite Nanomaterials

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Fei Wang ◽  
Lei Feng ◽  
Qingguo Tang ◽  
Jinsheng Liang ◽  
Haifeng Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Coupling Agent ◽  
Rubber Matrix ◽  
Composite Nanomaterials ◽  
Polybutadiene Rubber ◽  
Rubber Composite ◽  
Hydrophilic Character ◽  
The Relationship ◽  
Sepiolite Nanofibers ◽  
Tearing Strength

In order to use sepiolite nanofibers ascis-polybutadiene rubber fillers, the hydrophilic character of sepiolite nanofibers should be modified by grafting organic group and controlling surface free energy for improving compatibility of sepiolite nanofibers in rubber matrix. The relationship between the performance of thecis-polybutadiene rubber filled with sepiolite and the coupling modification was investigated, and the influence of coupling agentγ-(2,3-epoxypropoxy)propyltrimethoxysilane dosage on mechanical properties ofcis-polybutadiene rubber materials was also studied. The results showed that the mechanical properties could be improved obviously after reinforcement by modified sepiolite nanofibers. The optimum dosage of coupling agentγ-(2,3-epoxypropoxy)propyltrimethoxysilane was 7%, and the tensile strength and tearing strength increased by 108.3% and 74.1%, respectively. On this basis, the reinforcement mechanism of the composite rubber materials was also discussed.

scholarly journals Understanding the Coupling Effect between Lignin and Polybutadiene Elastomer

2021 ◽  
Vol 5 (6) ◽  
pp. 154
Author(s):  
Sakrit Hait ◽  
Debapriya De ◽  
Prasenjit Ghosh ◽  
Jagannath Chanda ◽  
Rabindra Mukhopadhyay ◽  
...  
Keyword(s):  
Coupling Agent ◽  
High Performance ◽  
Mechanical Performance ◽  
Coupling Effect ◽  
Cost Effective ◽  
Rubber Matrix ◽  
Rubber Composites ◽  
Renewable Biomass ◽  
Novel Approach ◽  
Polybutadiene Rubber

From an environmental and economic viewpoint, it is a win–win strategy to use materials obtained from renewable resources for the production of high-performance elastomer composites. Lignin, being a renewable biomass, was employed as a functional filler material to obtain an elastomer composite with a higher degree of mechanical performance. In the presence of a suitable coupling agent, an elevated temperature was preferred for the reactive mixing of lignin with polybutadiene rubber (BR). It is quite fascinating that the mechanical performance of this composite was comparable with carbon black-filled composites. The extraordinary reinforcing behavior of lignin in the BR matrix was understood by an available model of rubber reinforcement. In rubber composite preparation, the interfacial interaction between polybutadiene rubber and lignin in the presence of a coupling agent enabled the efficient dispersion of lignin into the rubber matrix, which is responsible for the excellent mechanical properties of the rubber composites. The rubber composites thus obtained may lead to the development of a sustainable and cost-effective end product with reliable performance. This novel approach could be implemented in other type of elastomeric materials, enabling a genuine pathway toward a sustainable globe.

Mechanical performance of ZrB2–ZrO2–SiC multilayer composite materials

2020 ◽  
Author(s):  
A. G. Burlachenko ◽  
Yu. A. Mirovoy ◽  
E. S. Dedova ◽  
S. P. Buyakova
Keyword(s):  
Composite Materials ◽  
Mechanical Performance ◽  
Multilayer Composite

scholarly journals Preparation and Performance Evaluation of Duotone 3D-Printed Polyetheretherketone as Oral Prosthetic Materials: A Proof-of-Concept Study

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1949
Author(s):  
Ling Ding ◽  
Wei Lu ◽  
Jiaqi Zhang ◽  
Chuncheng Yang ◽  
Guofeng Wu
Keyword(s):  
Titanium Dioxide ◽  
Performance Evaluation ◽  
Mechanical Performance ◽  
Mechanical Tests ◽  
Flexural Properties ◽  
Proof Of Concept ◽  
Tooth Color ◽  
Dental Application ◽  
3D Printed ◽  
And Performance

Literature has reported the successful use of 3D printed polyetheretherketone (PEEK) to fabricate human body implants and oral prostheses. However, the current 3D printed PEEK (brown color) cannot mimic the vivid color of oral tissues and thus cannot meet the esthetical need for dental application. Therefore, titanium dioxide (TiO2) and ferric oxide (Fe2O3) were incorporated into PEEK to prepare a series of tooth-color and gingival-color PEEK composites in this study. Through color measurements and mechanical tests, the color value and mechanical performance of the 3D printed PEEK composites were evaluated. In addition, duotone PEEK specimens were printed by a double nozzle with an interface between tooth-color and gingival-color parts. The mechanical performance of duotone PEEK with two different interfaces (horizontal and vertical) was investigated. With the addition of TiO2 and Fe2O3, the colors of 3D printed PEEK composites become closer to that of dental shade guides. 3D printed PEEK composites generally demonstrated superior tensile and flexural properties and hence have great potential in the dental application. In addition, duotone 3D printed PEEK with a horizontal interfacial orientation presented better mechanical performance than that with a vertical one.

scholarly journals Effect of Structural Differences on the Mechanical Properties of 3D Integrated Woven Spacer Sandwich Composites

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4284
Author(s):  
Lvtao Zhu ◽  
Mahfuz Bin Rahman ◽  
Zhenxing Wang
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Three Dimensional ◽  
Sheet Thickness ◽  
Physical And Mechanical Properties ◽  
Sandwich Composites ◽  
Computed Tomography Images ◽  
And Performance ◽  
Industrial Textiles ◽  
Load Conditions

Three-dimensional integrated woven spacer sandwich composites have been widely used as industrial textiles for many applications due to their superior physical and mechanical properties. In this research, 3D integrated woven spacer sandwich composites of five different specifications were produced, and the mechanical properties and performance were investigated under different load conditions. XR-CT (X-ray computed tomography) images were employed to visualize the microstructural details and analyze the fracture morphologies of fractured specimens under different load conditions. In addition, the effects of warp and weft direction, face sheet thickness, and core pile height on the mechanical properties and performance of the composite materials were analyzed. This investigation can provide significant guidance to help determine the structure of composite materials and design new products according to the required mechanical properties.

scholarly journals Toward Uniformly Dispersed Battery Electrode Composite Materials: Characteristics and Performance

2016 ◽  
Vol 8 (5) ◽  
pp. 3452-3463 ◽  
Author(s):  
Yo Han Kwon ◽  
Matthew M. Huie ◽  
Dalsu Choi ◽  
Mincheol Chang ◽  
Amy C. Marschilok ◽  
...  
Keyword(s):  
Composite Materials ◽  
Battery Electrode ◽  
And Performance

ChemInform Abstract: Semiconductor-Based Composite Materials: Preparation, Properties, and Performance

ChemInform ◽  
2010 ◽  
Vol 32 (48) ◽  
pp. no-no
Author(s):  
Krishnan Rajeshwar ◽  
Norma R. de Tacconi ◽  
C. R. Chenthamarakshan
Keyword(s):  
Composite Materials ◽  
And Performance ◽  
Materials Preparation

New Rotor with Variable Clearance in the Short Fiber Rubber Composite Mixing

2013 ◽  
Vol 328 ◽  
pp. 387-392
Author(s):  
Cai Jun Liu ◽  
Chuan Sheng Wang
Keyword(s):  
Production Efficiency ◽  
Short Fiber ◽  
Short Fibers ◽  
Mixing Chamber ◽  
Small Clearance ◽  
Rubber Composite ◽  
Mixing Quality ◽  
And Performance

The mixing mechanism of short fiber/rubber composite was analyzed. The clearance between the rotor edge peak and mixing chamber influenced mixing, dispersion and length of the short fibers in compound. The new rotor was designed with variable clearance. The large clearance gap improve the mixing, and the small clearance gap helped to improve the dispersion of short fiber. The mixing quality and performance of short fiber/rubber composite were improved by using the new rotor, and the production efficiency increased.

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